Japan Geoscience Union Meeting 2014

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International Session (Oral)

Symbol A (Atmospheric, Ocean, and Environmental Sciences) » A-AS Atmospheric Sciences, Meteorology & Atmospheric Environment

[A-AS02_29AM2] Data Assimilation in Earth Sciences

Tue. Apr 29, 2014 11:00 AM - 12:41 PM 314 (3F)

Convener:*Hirohiko Ishikawa(Disaster Prevention Research Institute, Kyoto University), Shigeo Yoden(Division of Earth and Planetary Sciences, Graduate School of Science, Kyoto University), Takeshi Enomoto(Disaster Prevention Research Institute, Kyoto University), Seon-Ki Park(Ewha Women's University), Chun-Chieh Wu(National Taiwan University), SHINICHI MIYAZAKI(Graduate School of Science, Kyoto University), Yoichi Ishikawa(JAPAN Agency for Marine-Earth Science and Technology), Chair:Takeshi Enomoto(Disaster Prevention Research Institute, Kyoto University)

In numerical weather prediction, the observation,prediction and data assimilation techniques have developed dramatically,achieving improvements of forecast skills of high-impact weather eventssuch as bomb cyclones, super typhoons, torrential rain, tornadoes andhot spells. Data assimilation techniques have been applied toatmospheric transport, ocean circulation and earthquakes and a number ofadvanced techniques have been proposed. In this session, with invitedspeaker Prof Emeritus Yoshikazu Sasaki, we review the recent developmentof data assimilation techniques, discuss methodologies and applicationsof their applications and project future directions for further development.

11:35 AM - 11:50 AM

[AAS02-09] Data assimilation experiment of water vapor data derived from a hyper-dense GNSS network using a nested LETKF system

*Masanori OIGAWA1, Toshitaka TSUDA1, Eugenio REALINI1, Yuya IWAKI1, Hiromu SEKO2, Yoshinori SHOJI2, Kazutoshi SATO3 (1.Research Institute for Sustainable Humanosphere (RISH), Kyoto University, 2.Meteorological Research Institute (MRI), Japan Meteorological Agency (JMA), 3.Japan Aerospace Exploration Agency (JAXA))